Benefits of Implementing a Logical Standby Database

Logical Standby Database in Data Guard environment stays in a Read, Write mode that is fully updatable mode. Logical Standby Database provides following benefits over any other standby database in data guard : To know more about Logical Standby Architecture: Logical Standby Database: SQL Apply Architecture The database is opened in READ, WRITE mode in logical […]

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Configure DG broker

The Data Guard broker logically groups these primary and standby databases into a broker configuration that allows the broker to manage and monitor them together as an integrated unit. You can manage a broker configuration using either the Oracle Enterprise Manager graphical user interface or the Data Guard command-line interface. To know more about it Oracle […]

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ORA-65179 PDB in Oracle 12c

While dropping the PDB, we receive the error like cannot keep datafiles for a pluggable database that is not unplugged.

Solution:

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Creating RAC database With PDBS

In this Article we will Create RAC Database with PDBS using DBCA. Step 1 : Once you use dbca , first screen that will open is as below select Create Database and click  next: Step 2 : Select Advanced Mode and click Next Step 3 : Select RAC database as database type and Admin Managed […]

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Plug Single Instance PDB to RAC CDB

In this article we will Plug Single Instance PDB to RAC CDB. Single Instance CDB Name Single Instance PDB Name RAC Instance CDB RAC Instance Name RAC Node  globdb pdb1 CDB1 RAC1 Node1 RAC2 Node2 Step 1 : Check status of Globdb and CDB1

Step 2 : Check details of globdb :

Step […]

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ora-02097 parameter cannot be modified because specified value is invalid

You might get ORA-02097 while changing PGA_AGGREGATE_LIMIT.

To set PGA_AGGREGATE_LIMIT we should take care of following allowable values : 2 GB (default value) 200% of the PGA_AGGREGATE_TARGET value 3 MB times the value of the PROCESSES parameter. Less then 1.2 X RAM – SGA Here In my case I am changing value according my […]

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Relink Oracle 12c Grid Infrastructure and RDBMS binaries.

In order to relink the Oracle Grid Infrastructure RAC/Cluster Installation, please follow the next steps after stopping all the services running: 1) As root OS user, please unlock the Grid Infrastructure Oracle Home (on every node) as follows:

2) As the Oracle Grid Infrastructure owner (on every node) relink the Grid Infrastructure Oracle Home […]

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Oracle Database 18c and it’s features

Finally, Oracle officially released Oracle Database 18c with Oracle Documentation available on Oracle Public Cloud(OPC).  To get more detailed on Oracle 18c release read Oracle Support Document 2285040.1. List of some new features in Oracle 18c: Data Guard Oracle Data Guard Multi-Instance Redo Apply Supports Use of Block Change Tracking Files for RMAN Backups Automatic Correction […]

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Fast Application Notification [FAN] overview

As the Oracle docs say, The Oracle RAC, FAN, Oracle 12c Fast Application Notification (FAN) feature provides a simplified API for accessing FAN events through a callback mechanism. This mechanism enables third-party drivers, connection pools, and containers to subscribe, receive and process FAN events. These APIs are referred to as Oracle RAC FAN APIs. If […]

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Sosreport on Oracle Linux

The “sosreport” is a tool to collect troubleshooting data on an Oracle Linux system. It generates a compressed tarball of debugging information that gives an overview of the most important logs and configuration of a Linux system, to be sent to Oracle Support. Among other things, the sosreport includes information about the installed rpm versions, […]

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